package com.tanhua.dubbo.api;

import com.tanhua.model.enums.CommentType;
import com.tanhua.model.mongo.Comment;
import com.tanhua.model.mongo.Movement;
import org.apache.dubbo.config.annotation.DubboService;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.FindAndModifyOptions;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

import java.util.List;

@DubboService
public class CommentApiImpl implements CommentApi {

    @Autowired
    private MongoTemplate mongoTemplate;

    // 发布评论,并获取评论数量 ,点赞和喜欢通用
    public Integer save(Comment comment) {
        // 1:查询动态
        Movement movement = mongoTemplate.findById(comment.getPublishId(), Movement.class);
        // 2:向comment对象设置被评论人属性
        if (movement != null){
            comment.setPublishUserId(movement.getUserId());
        }
        // 3:保存到数据库
        mongoTemplate.save(comment);
        // 4:更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()){
            update.inc("likeCount",1);
        }else if (comment.getCommentType() == CommentType.COMMENT.getType()){
            update.inc("commentCount",1);
        }else {
            update.inc("loveCount",1);
        }
        // 设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);  // 获得更新后的最新数据
        // 更新某个字段,并且返回更新后的数据
        // 1:查询条件, 2:要更新的字段和对应的值, 3:更新的设置,拿到最新的结果, 4:当前操作实体类的字节码对象
        Movement modify = mongoTemplate.findAndModify(query, update, options, Movement.class);
        // 5:获取最新的评论数量,并且返回
        return modify.statisCount(comment.getCommentType());
    }

    // 分页查询评论列表
    public List<Comment> findComments(String movementId, CommentType comment, Integer page, Integer pagesize) {
        // 1:构建查询条件
        Query query = Query.query(Criteria.where("publishId").is(new ObjectId(movementId))
                .and("commentType").is(comment.getType()))
                .skip((page - 1) * pagesize).limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        // 2:查询并返回
        return mongoTemplate.find(query,Comment.class);
    }

    // 判断comment数据是否存在
    public Boolean hasComment(String movementId, Long userId, CommentType like) {
        // 构建条件
        Criteria criteria = Criteria.where("userId").is(userId).and("publishId").is(new ObjectId(movementId))
                .and("commentType").is(like.getType());
        Query query = Query.query(criteria);
        // 判断数据是否存在
        return mongoTemplate.exists(query,Comment.class);
    }

    // 取消点赞
    public Integer delete(Comment comment) {
        // 1:删除comment表数据
        Criteria criteria = Criteria.where("userId").is(comment.getUserId())
                .and("publishId").is(comment.getPublishId())
                .and("commentType").is(comment.getCommentType());
        Query query = Query.query(criteria);
        mongoTemplate.remove(query,Comment.class);
        // 2:修改动态表中的总数量
        Query movementQuery = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()){
            update.inc("likeCount",-1);
        }else if (comment.getCommentType() == CommentType.COMMENT.getType()){
            update.inc("commentCount",-1);
        }else {
            update.inc("loveCount",-1);
        }
        // 设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);  // 获得更新后的最新数据
        // 更新某个字段,并且返回更新后的数据
        // 1:查询条件, 2:要更新的字段和对应的值, 3:更新的设置,拿到最新的结果, 4:当前操作实体类的字节码对象
        Movement modify = mongoTemplate.findAndModify(movementQuery, update, options, Movement.class);
        // 5:获取最新的点赞数量,并且返回
        return modify.statisCount(comment.getCommentType());
    }


    // 保存评论点赞
    public Integer saveCommentsLike(Comment comment1) {
        // 1:查询动态
        Comment comment = mongoTemplate.findById(comment1.getPublishId(), Comment.class);
        // 2:向comment对象设置被评论人属性
        if (comment != null){
            comment1.setPublishUserId(comment.getUserId());
        }
        // 3:保存到数据库
        mongoTemplate.save(comment1);
        // 4:更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(comment1.getPublishId()));
        Update update = new Update();
        if (comment1.getCommentType() == CommentType.LIKE.getType()){
            update.inc("likeCount",1);
        }
        // 设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);  // 获得更新后的最新数据
        // 更新某个字段,并且返回更新后的数据
        // 1:查询条件, 2:要更新的字段和对应的值, 3:更新的设置,拿到最新的结果, 4:当前操作实体类的字节码对象
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        // 5:获取最新的评论数量,并且返回
        return modify.commentLikeCount(comment1.getCommentType());
    }

    // 删除评论点赞
    public Integer deleteCommentLike(Comment disLikeComment) {
        // 1:删除comment表数据
        Criteria criteria = Criteria.where("userId").is(disLikeComment.getUserId())
                .and("publishId").is(disLikeComment.getPublishId())
                .and("commentType").is(disLikeComment.getCommentType());
        Query query = Query.query(criteria);
        mongoTemplate.remove(query,Comment.class);
        // 2:修改动态表中的总数量
        Query commentQuery = Query.query(Criteria.where("id").is(disLikeComment.getPublishId()));
        Update update = new Update();
        if (disLikeComment.getCommentType() == CommentType.LIKE.getType()){
            update.inc("likeCount",-1);
        }
        // 设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);  // 获得更新后的最新数据
        // 更新某个字段,并且返回更新后的数据
        // 1:查询条件, 2:要更新的字段和对应的值, 3:更新的设置,拿到最新的结果, 4:当前操作实体类的字节码对象
        Comment modify = mongoTemplate.findAndModify(commentQuery, update, options, Comment.class);
        // 5:获取最新的点赞数量,并且返回
        return modify.commentLikeCount(disLikeComment.getCommentType());

    }

}